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   comp.sys.cbm      Discussion about Commodore micros      53,866 messages   

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   Message 52,885 of 53,866   
   Harry Potter to K-Guide   
   Re: Power C/asm: returning a value from    
   14 Dec 19 17:03:23   
   
   From: rose.joseph12@yahoo.com   
      
   On Saturday, December 14, 2019 at 7:17:21 PM UTC-5, K-Guide wrote:   
   > Using the stack makes alot of since for the return value of the assembler   
   > function.  In the case of no parameter, I suspect you can just call the   
   routine   
   > via a function pointer in C. Set that to the address of your assembler   
   routine   
   > and call the function.  Please bear in mind I am not a Power C programmer,   
   but   
   > am just guessing based on other platforms I program on.  If you have   
   parameters   
   > there could be some documemtation on how to pass them via registers in the   
   > compiler docs.  Compilers seem to have their own style for stuff like that.    
   It   
   > also could be that you just need to drop the values into a certain memory   
   > location as the assember routine expects it there.   
   >   
   > Not sure I follow you about the too few parameters.   
   >   
   The docs. I have reveal that the return value seems to overwrite the last   
   parameter passed to the function.  That's why I am worried about the too few   
   parameters.   
      
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